【microStudio】小要素を管理するオブジェクト

GameObjects.js

class GameObjects {
  children = new Set();
  constructor() {
    this.children = new Set();
  }

  add(child) {
    this.children.add(child);
  }
  remove(child) {
    this.children.delete(child);
    if(child.destroy) {
      child.destroy();
    }
  }
  init() {
    [...this.children.values()].filter(v => v.init).forEach(v => v.init());
  }
  update() {
    [...this.children.values()].filter(v => v.update).forEach(v => {
      v.update();
      if(v.isDead) {// 死んでたら削除
        this.remove(v);
      }
    });
  }
  draw() {
    [...this.children.values()].filter(v => v.draw).reverse().forEach(v => v.draw());
  }
  
  destroy() {
    this.children.forEach(v => this.remove(v));
  }
}